Screening of off-street parking. All off-street parking areas shall be screened from the street. Screening should be a minimum of 42 inches in height, should be continuous and should conceal the parking area(s) from the street. Methods of screening many include stonewalls, picket fences, evergreen or deciduous hedges, other suitable landscape materials or a combination of materials. All screening should be located inside the applicant's property boundary and should not encroach onto the public sidewalk. Screening should not limit a driver's visibility of the sidewalk or street when exiting any off-street parking lot. Where the driveway intersects the street right-of-way, there should be no fence, wall, hedge or other material higher than 42 inches above grade for a distance of at least 15 feet on either side of the driveway.